McKinnie is an unrestricted free agent who battled conditioning and weight issues and didn't regain his starting job at left tackle until he lobbied coach John Harbaugh, and left guard Jah Reid suffered a season-ending toe injury.

The Ravens reconfigured their offensive line for the playoffs and installed McKinnie at left tackle, shifted Michael Oher to right tackle and shifted rookie Kelechi Osemele from right tackle to left guard. They allowed just six sacks in four playoff victories.

"I think the thing we found out this season is we have probably about eight or nine offensive linemen with starter potential that were able to go and play very good football for us," Newsome said. "You saw that we've got good depth. But I think we like our young guys. I think Juan Castillo is going to be a great addition to our staff. He's known for helping and developing young players.

"I feel good about our offensive line. You said left tackle. Von Miller plays on the left side and he has to go up against the right tackle. So right now it's not a left tackle, right tackle thing. You have to have the ability to hold up on the left side or the right side."